A kind of control method based on series voltage compensation is proposed to solve the low voltage issue at the end of distribution network.A new type of line voltage regulation and control device is designed.When the supply voltage of the line exceeds the permissible range

the line voltage can be increased through the series voltage to the line.At the same time

the three-phase load imbalance control and reactive power compensation are achieved with combination of comprehensive compensator based on SVG+parallel capacitor.It is proved by the real example that the method can effectively improve the voltage quality at the end of the line

improve the three-phase load imbalance and the reactive power shortage and reduce the line loss.It is shown by the result that the method has good control effect and economy.